爬取下载许仙视频

import requests
import re

#得到网页数据
header = {"User-Agent":"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36"}
response = requests.get('https://haokan.baidu.com/v?vid=2084224091859026831&fr=hao123-tab',headers=header)
#print(response.text)
#解析网页地址
mp4_url = re.findall('<video class="video" src=(.*?)>',response.text)[0]
mp4_name = re.findall('h2 class="videoinfo-title">(.*?)</h2>',response.text)[0]
#print(mp4_name)
#print(mp4_url)
response = requests.get(mp4_url)
f = open(mp4_name+".mp4",mode="wb")
f.write(response.content)
f.close()

#response.encoding = "UTF-8"
#print(response.text)